Title
K2-29 b/WASP-152 b: AN ALIGNED and INFLATED HOT JUPITER in A YOUNG VISUAL BINARY
Date Issued
10 June 2016
Access level
open access
Resource Type
journal article
Author(s)
Santerne A.
Hébrard G.
Lillo-Box J.
Armstrong D.J.
Barros S.C.C.
Demangeon O.
Barrado D.
Debackere A.
Deleuil M.
Mena E.D.
Montalto M.
Pollacco D.
Osborn H.P.
Sousa S.G.
Abe L.
Adibekyan V.
Almenara J.M.
André P.
Arlic G.
Barthe G.
Bendjoya P.
Behrend R.
Boisse I.
Bouchy F.
Boussier H.
Bretton M.
Brown D.J.A.
Carry B.
Cailleau A.
Conseil E.
Coulon G.
Courcol B.
Dauchet B.
Dalouzy J.C.
Deldem M.
Desormières O.
Dubreuil P.
Fehrenbach J.M.
Ferratfiat S.
Girelli R.
Gregorio J.
Jaecques S.
Kugel F.
Kirk J.
Labrevoir O.
Lachurié J.C.
Lam K.W.F.
Guen P.L.
Martinez P.
Maurin L.P.A.
McCormac J.
Pioppa J.B.
Quadri U.
Rajpurohit A.
Rey J.
Rivet J.P.
Roy R.
Santos N.C.
Signoret F.
Strabla L.
Suarez O.
Toublanc D.
Tsantaki M.
Vienney J.M.
Wilson P.A.
Bachschmidt M.
Gerteis O.
Louis P.
Mario J.C.
Marlot C.
Montier J.
Perroud V.
Pic V.
Romeuf D.
Ubaud S.
Verilhac D.
Institut de Mécanique Céleste et Calcul d'Ephémérides
Publisher(s)
Institute of Physics Publishing
Abstract
In the present paper we report the discovery of a new hot Jupiter, K2-29 b, first detected by the Super-WASP observatory and then by the K2 space mission during its campaign 4. The planet has a period of 3.25 days, a mass of 0.73 ± 0.04 M, and a radius of 1.19 ± 0.02 R. The host star is a relatively bright (V = 12.5) G7 dwarf with a nearby K5V companion. Based on stellar rotation and the abundance of lithium, we find that the system might be as young as ∼450 Myr. The observation of the Rossiter-McLaughlin effect shows that the planet is aligned with respect to the stellar spin. Given the deep transit (20 mmag), the magnitude of the star and the presence of a nearby stellar companion, the planet is a good target for both space- and ground-based transmission spectroscopy, in particular in the near-infrared where both stars are relatively bright.
Volume
824
Issue
1
Language
English
OCDE Knowledge area
Astronomía
Subjects
Scopus EID
2-s2.0-84976385279
Source
Astrophysical Journal
ISSN of the container
0004637X
Sources of information:
Directorio de Producción Científica
Scopus